This SEC Filing shows that The Humble Bundle has received a $4.7 million investment, which Gamasutra says a "reliable source" informs them is led by venture capitalists Sequoia Capital, and that they not yet received a response from Humble Bundle cofounder (and COO of Wolfire Games) John Graham to their inquiry about what they will do with this cash. The Humble Bundle is currently amid their third offering of a bundle of DRM-free indie games with a pick-your-own-price payment scheme and a charitable component.